It is well known that the US has four branches of government: the executive, the legislature, the judiciary and celebrities. The country's constitution is also famously insistent about ensuring the separation of powers between those branches, which is just as well, because were celebrities ever to get their hands on the seat of government we'd all be in a lot of trouble.

Gisele Bündchen, the Brazilian supermodel who now lives in the US, has given a definitive example of why it is imperative to keep celebrities away from decision-making, by sharing with the world her views on breastfeeding.

In an interview with the UK edition of Harper's Bazaar, she says: "I think there should be a worldwide law, in my opinion, that mothers should breastfeed their babies for six months."

She added: "Some people here in the US think they don't have to breastfeed, and I think: 'Are you going to give chemical food to your child when they are so little?'"

To be fair, Bündchen practises what she preaches. Last December she gave birth to Benjamin, her son by American football star husband Tom Brady, naturally and at home, having meditated through the eight-hour labour.

Meditation, she told Harper's Bazaar, "prepared me mentally and physically. I wasn't expecting someone else to get the baby out of me."